Setting table properties is really slow

[bilalaslamseattle]

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Describe the feature

Setting many table properties is slow (e.g. when you use them for column documentation) because when you set one table property, Hive Metastore rewrites all of them.

Proposal

Enhance dbt-databricks to fetch all the comments, do a diff with what's in the dbt project and only issue updates if the diffs don't match.

Who will this benefit?

Everyone! Faster table properties would be nice!